stand on drivers side with hood open ,, just behind the brake booster on the metal firewall is the terminal. Just push up to remove. Some may have a plastic side catches that you must press while pulling up to seperate the connector.

Luck to you,
DanielW

P.S. do a search for my recent posts on replacing the blower motor brushes on my 124 car. There are many hits that will come up in a search.